// Scourge executes the reaction to a story hit.
func scourge(context *cli.Context) {
// Read the story
story, err := common.ReadStory(common.StandardInput())
if err != nil {
log.Println(err)
return
}
// Check if there is anything to execute
if len(story.Triggers) == 0 {
return
}
// Loop through the story triggers
for _, t := range story.Triggers {
cmd := exec.Command(t.Command, t.Arguments...)
err := cmd.Start()
// If there was a problem starting the command and it is set
// to wait then we fail hard
if err != nil && t.Wait {
log.Printf("Failed to execute [%s]", t.ToString())
return
}
// If we are to wait then we need to check its status and
// fail hard if there was an issue
if t.Wait {
if err = cmd.Wait(); err != nil {
log.Printf("Error executing [%s]", t.ToString())
return
}
}
}
}
// Scour a collection of feeds looking for a match to the given story.
func scour(context *cli.Context) {
// Get the path to the file containing the feeds
path := context.String("feeds")
// Read our current story file
story, err := common.ReadStory(common.StandardInput())
if err != nil {
log.Println(err)
return
}
// Open the feed
f, err := os.Open(path)
if err != nil {
log.Println(err)
return
}
defer f.Close()
// Digest the feeds
urls := []string{}
bf := bufio.NewScanner(f)
for bf.Scan() {
u := bf.Text()
comment := strings.Index(u, "//")
if u != "" && comment != 0 {
urls = append(urls, u)
}
}
if err := bf.Err(); err != nil {
log.Println(err)
return
}
// Loop through each feed searching for a matching story
c := make(chan common.Story)
e := make(chan error)
for _, url := range urls {
go func(u string) {
s, err := story.Find(u)
if err != nil {
e <- err
return
}
c <- s
}(url)
}
// Make sure everything has completed prior before quitting
for i := 0; i < len(urls); i++ {
select {
case incoming := <-c:
// Ignore JSON marshalling errors and move on to the next
// potential match
json, err := incoming.ToJSON()
if err == nil {
fmt.Fprintf(os.Stdout, "%s", json)
return
}
case <-e:
// TODO: Record the error
}
}
// If nothing hit then report a failure
log.Println("Could not find a story match")
}